Samsung Galaxy comes with ton of new features but the feature that grabs most eye-ball was always on display. The display shows a clock, and some important notification information.
Previously, to see the date and time it was necessary to switch on the phone, many times a day just to turn on screen viewing time. This makes phone battery quickly dry-off. The idea behind Always on Display is that you'll be using the breathing notification instead of constantly waking your phone, which means your phone can stay in a low-power mode to deliver you this information
All you need is this app. Power consumption isn't likely to be an issue with this app as it’s hardly consume phone battery juice while doing its job. In many ways, Always-On is the natural evolution of existing display ideas.
The video below will guide you through the setup and settings of the app. Further you can download the Always on Display app from Playstore (Link) Do tell us in comment your experience with this app